Automatic filling-replenishing mechanism for looms.



No. 834,852. V PAT-BNTED OCT., 30,- 1906.

'J. SMITH a; E. s. s1'1MPsoN.., Q AUTOMATIC FILLING RBPL'ENI'SHING' MECHANISM FOR LOOMS.

APPLICATION FILED FEB. 26. 1906. v

UNITED STATES PATENT OFFICE.

JOHN SMITH AND EDWARD STIMPsoN. OF HoP DALE, MASSACHUSETTS, ASSIGNORS TO DRAPER CoMPANY, OF HOPEDALE, MASSACHUSETTS,

A CORPORATION OF MAINE.

AUTOMATIC FILLING-REPLENISHING MECHANISM FOR LOOMS- T0 on whom it may concern.-

Be it known that we, JOHN SMITH and E1)- WARD S. STIMPSON, citizens of the United States, and residents of Hopedale, county of Worcester, andState of Massachusetts, have invented an Improvement in Automatic Filling-Replenishing Mechanism for Looms,

moved singly and inserted in the running shuttle by a transferrer mounted to rock on a fixed pivot and'having a notched dog ,con-

nected by a dependin arm. When the loom is runningproperly, t e dog is held out of the path of a bunter mounted on a moving art of the loom, usually the lay; but when fi ling replenishment is necessary the dog is moved into the bunter-path, so that the bunter engages the notch and pushes the dog forward, thereby rocking the transferrer and causing a fresh filling-carrier to be inserted in the shuttle. Sometimes, from loosenes's or wear or for other reasons, the dog fails to rise as high as it should, so that the edge of the bunter comes in contact with the upper edge of the notched dog, and if such edges remain in contact the dog is pushed forward farther than it should be. As a result the bobbin or fillingc'arrier being transferred is pushed farther into the shuttle, and this may result in pushing the bobbin entirely through, and hence emptying the shuttle, or if the bobbin is held 1n the shuttle it may be in such an insecure manner as to be at an angle with the shuttle when the latter is thrown, the incorrectlyheld bobbin being caught in the slot in the lay or later in the shed. If after such an edge engagement as referred to the dog slips over the bunter edge and rises during-transfer, the bunter will find its proper seat and the transfer will be correctly completed. Should the dog slip down, however, during transfer, thebobbin may be started outof Specification of Letters Patent. 7 Application filed February 26, 1906. Serial No. 303,139.

Patented Oct. 30, 1906.

the filling feeder or hopper and then left b the transferrer in such position as to be amost certainly caught in the shed, causing a smash.

Our resent invention has for its object primari y the production of means for insuring the proper and complete engagement of the bunter and dog, and thereby cause a correct transfer, even if at the initial impact there should be some improper relative positioning or imperfect engagement of said I parts, our invention thus serving as a species of safety device to secure the proper operation of the replenishing mechanism when required or to cause the bunter to pass over the dog, preventingtransfer altogether.

The various novel features of our invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 represents, in side elevation and transverse section, a sufiicient portion of an automatic filling-replenishing mechanism of the type referred to, with one embodiment of our invention applied thereto, the parts being shown-in normal position. Fig. 2'is a similar view, but showing some of the parts in full operative position as a transfer of fillin is being effected. Fig. 3 is an enlarged Si e elevation of the dog, viewed from the outer side thereof, showing the bunter edge as just having engaged the safety device on the dog at a height substantially the same as the upper edge of the dog. Fig. 4 is a similar view of the dog, but showing how the safety device operates to eflect the pro er cooperation of the do and bunter, the unter being shown as fair y and squarely seated in the notch of the dog. Fig. 5 is an end elevation of the dog and safety device, viewing Fig. 3 from the right.

The rotatable hopper or feeder F, Figs. 1 and 2, adapted to contain a supply of fillingcarriers or bobbins b, the transferrer f, ful.

crumed on the fixed stud f and adapted to remove the filling-carriers singly and insert them in the running shuttle, the lay A on which is usually mounted the bunter C having a beveled edge, and the depending extension f 3 of the transferrer may be and are all of well-known construction, the transferrer being held in normal position, Fig. 1, by a spring.- (Not shown.)

, A stud f 4 on the extension f 3 has pivotally V mounted upon it a plate or carrier f which in practice has adjustably secured to it a notched dog to be engaged by the bunter having a slot for the clamping-bolt and a transversely-notched rear face, and sometimes the bunter will engage the upper edge of the notch, giving too great a movement to the parts, pushing the bobbin too far or e11- tirely through the shuttle, as hereinbefore mentioned, with the attendant objections, or the dog may be depressed to a certain extent, starting the bobbin out of the hopper, but failing to properly insert it in the shuttle.

We will now explain the construction and operation of our present invention, designed to prevent such faulty action.

The dog in accordance with our invention comprises a body portion 1,. longitudinally slotted at 2, Figs. 3 and 4, to receive the clamping-boltf, the rear or acting face of the body being notched to present two divergent sides or walls 3 4.

The body is laterally extended on its outer side at 5 to form a prolongation of the wall 4, (see Fig. 5,) the top of such extension forming a rest or support 6 for a safety device or latch 7, which at its front end is pivotally mounted on a stud 8, laterally extended from the body 1 ofthe dog.

A cotter-pin 9 or other suitable retaining device, Figs. 3 and 4, holds the latch on the stud, the upper side 6 of the extension 5 being so placed that normally the beveled rear end 10 11 of the latch projects beyond the notch-wall 4, the edge of the latch extending beyond the notch-wall 3, while the face 10 of the latch is below the said notch-wall 3.

A lateral ear 12 on the body of the dog projects above the latch, and a coiled spring 13 is interposedbetween said parts, thelatch being socketed at 14 (see dotted lines, Fig. 4) to receive one end of the spring, which latter acts to maintain the latch in normal position.

In actual practice a spring (not shown) coiled around the stud f tends to swing the dog from its normal inoperative position, Fig. 1, upward to bring its notched face into the path of the bunter C such tendency of the spring being resisted by an arm h which is usually connected with the usual shuttlefeeler, (not shown,) and said arm has a camslot h, Figs. 1 and 2, in which enters a stud 15, extended from the inner side of a de pending part 16 on the dog. When filling replenishment is called for, the shuttle-feeler swings rearward, and thereby the arm h swings rearward and permits the dog to move into operative position, such operation and the construction just described being old and well known in the art. Now when the bunter engages the operatively-positioned dog, supposing the parts to be in proper cooperative relation, the bunter engages the face 10 of the latch 7 and presses the latter forward and upward on its pivot 8 until, its face 10 is alined with the notch-wall 3, as in Fig. 2, and the operation of the replenishing mechanism is efl'ectedproperly. If, however, the dog should not have quite reached its proper operative position, or if the hunter should be worn, it will engage the face 10 of the latch overhanging the notch, and as said latch gives, due to compression of its spring, the change in the position of the latch will cause the edge of the bunter to be directed into proper position in the notch 3 4. If the edge of the bunter should engage the edge of the beveled end of the latch, as in Fig. 3, it will begin to push it forward; but as the latch is pivoted at 8 forward of and slightly below the point of engagement of the hunter and latch the latter will rise, depressing its spring 13, so that the face 10 slips over or across the edge of the bunter, causing the latter to slide down properly into the notch 3 4 of the dog, as in Fig. 4. If the edge of the bunter strikes the face 11 above the edge of the latch, the dog will be depressed sulliciently to prevent any transfer at all.

Any tendency of the bunter to increase the movement of the dog is absolutely prevented by the latch, as described, so that the latch serves as a safety device to insure the proper cooperation of the dog and bunter, if the latter at all engages the latch and the consequent complete and proper operation of the re plenishing mechanism.

From the foregoing description and the drawings it will be manifest that the hunter must always engage the latch before it engages the notched face of the dog, so that the safety device is always operative.

The car 12 acts not only as a backing for the spring 13, but it also serves as a stop to limit the movement of the latch relatively to the dog when engaged by the bunter.

Various changes or modifications may be made in the details of construction without departing from the spirit and scope of our invention.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In fillingreplenishing mechanism for looms, a transferrer, a dog connectedv therewith and having a notched. face, a hunter adapted to cooperate with said notched face when the dog is positioned for cooperation with the bunter, and a safety device on the dog to insure proper cooperation between it and the bunter.

2. The combination, in a loom, of means adapted to insert filling-carriers one by one in the running shuttle, a dog, a bunter ad apted to cooperate with said dog when operatively positioned. and effect the operation of said means, and means movably mounted on atively connected with said means and normally inoperative, a bunter to cooperate with said dog when operatively positioned and effect the actuation of said means, and a yieldingly-mounted latch on the dog overhanging the notch thereof,-to be initially engaged by the bunter and insure proper cooperation of the dog and bunter.

4. In filling-replenishing mechanism for looms, a transferrer, a dog connected therewith and having a transversely-notched face, a bunter adapted to enter the notch when the dog is operatively positioned and effect the proper actuation of the transferrer, a springcontrolled latch movably mounted on the dog normally projecting into the notch, and a stop to limit movement of the latch when engaged by the bunter and thereby moved from normal position, said latch serving to insure complete and proper cooperative engagement between the bunter and the notched face of the dog; v

5. In filling-replenishing mechanism for looms, a transferrer, a dog connected therewith and having a-transversely-notched acting face, a stud laterally extended from the dog forward of its notch, a lateral prolongation of the lower wall of the notch, a latch pivotally mounted on the stud and supported on said prolongation, the acting end of the latch having a beveled face normally overhanging the notch and projecting beyond the upper wall thereof, a spring to normally retain'the latch in such position, and a bunter adapted to enter the notch when the dog is operatively positioned, to effect the o eration of the transferrer the latch yie ding when its beveled face is initially engaged by the bunter and thereby causing the bunter toslide over said face into proper cooperative engagement with the notch in the dog.

6. The combination, in a loom, of fillingreplenishing mechanism, a member connect-l ed therewith and normally inoperatively positioned, a bunter to cooperate with said member when operatively positioned, to effect the actuation of the replenishing mechanism, and means on said dog to be initially engaged by the bunter when the dog is moved into active position, whereby if there is any engagement between said means and the bunter the latter will insure proper cooperation between the bunter and dog.

7. The combination, in a loom, of fillingreplenishing mechanism, a normally inoperatlve dog connected therewith and having a notched actin face, a bunter to cooperate with said notc ed dog when operatively po sitioned, to effect the actuation of the replenishing mechanism, and a safety-latch fulcrumed on the dog forward of its notched face, the free end of the latch extending beyond the notch to initially engage the hunter when the dog is moved into operative position, said latch end having oppositelybeveled faces engagement of the bunter with the latch at the junction of said faces or on the under face causing the bunter to slide into proper position in the notch of the dog to properly actuate the replenishing mechanism while engagement of the bunter with the upper beveled face depresses the dog sufficiently to prevent any actuation of said mechanism. 8. In filling-replenishing mechanism for looms, a transferrer, a dog connected therewith and having a notched face, ,a bunter adapted to cooperate with said notched face when the dog is positioned for cooperationwith the bunter, and a safety device to insure roper cooperation between the dog and the unter.

In testimony whereof we have signed our JOHN SMITH. EDWARD S. STIMPSON.

Witnesses:

GEORGE OTIS DRAPER, ERNEST W. W001). 

